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Published: 24/11/2021 Updated: 03/05/2022

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Improper authorization in handler for custom URL scheme vulnerability in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version) versions before 4.49.1 allows a remote malicious user to lead a user to access an arbitrary website and the website launches an arbitrary Activity of the app via the vulnerable App, which may result in Mercari account's access token being obtained.

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CWE-862 https://jvn.jp/en/jp/JVN49465877/index.html https://nvd.nist.gov

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CVE-2021-20835

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